10 min read
Personal AI Agent: Honest Review After 2 Months
What my AI agent changed: 17 posts, 7 articles, less mental fog — plus the real costs, limits, setup work, and who it’s for.
Hi, I'm Jérémie
Product Engineer, freelance for 20 years.
Design, code and AI for public services and the social economy.
I join your team on long-term missions to design and build impactful digital products.
Latest articles
7 min read
Living with a Personal AI Agent Day to Day
Calendar, filtered news, voice notes, persistent memory: what I trust my AI agent with, what it connects, and what I keep to myself.
17 min read
Personal AI Agent Architecture with Letta
A real-world agent stack with Letta, Supabase, Coolify, Telegram, persistent memory, 17 skills, crons, costs, and security risks.
7 min read
Personal AI Agent: How I Built One That Actually Helps
I built a personal AI agent that remembers context, challenges my ideas, and works asynchronously. Here’s the setup and the real impact.
12 min read
I Built an AI Private Tutor for My Daughter
Suki is an AI tutor with persistent memory: Socratic questions, study tracking, portfolio planning, and guardrails against dependency.
8 min read
French State Design System: Accessibility Case Study
How Réfugiés.info, a French government service, migrated to DSFR and improved RGAA accessibility without a full redesign.
3 min read
Réfugiés.info: Evolving a French Government Platform
DSFR, RGAA, 8 languages, search and front-end debt: how I helped improve a French government platform with a small Beta.gouv team.
2 min read
StadiumGO: Building a Design System from Scratch
From Figma to Storybook and team training: how I designed a full design system for StadiumGO’s event carpooling platform.
Why work together?
1. Less back and forth, more results
I come with proposals, not questions. Decisions that would take three meetings happen in one conversation.
There's no middleman between the vision and the code: nothing gets lost along the way.
The result: you ship faster, and what you ship is consistent end to end.
2. You don't have to explain how it works
Twenty years designing and building digital products across very different contexts. I can read a specification, a product roadmap or an accessibility report without needing a translator.
Public services and the social and solidarity economy have become my home ground: I know the constraints and the vocabulary.
The time we spend together, we build. We don't align.
3. You integrate AI without taking on the risk
I know where AI genuinely helps and where it creates problems down the road.
What I deliver works in real conditions, not in a presentation.
You get the benefit without having to understand the inner workings.
My skills
I adapt to the real need, not the job description.
I know how to build a digital product end to end: research, design, development, deployment. I step in wherever the gap is.
What matters to me is the team. Knowing the other roles lets me be useful where it counts, and translate between disciplines when needed.
I document my design decisions so everyone understands the choices, even six months later.
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Case Studies
Réfugiés.info: Evolving a French Government Platform
DSFR • accessibility • RGAA • design-system
DSFR, RGAA, 8 languages, search and front-end debt: how I helped improve a French government platform with a small Beta.gouv team.
StadiumGO: Building a Design System from Scratch
design-system • UX-design • product-design
From Figma to Storybook and team training: how I designed a full design system for StadiumGO’s event carpooling platform.
Managing a Portfolio of 100+ Agency Websites
project-management • technical-leadership • team-management
A Pamplemousse case study: lead dev, creative/dev coordination, code review, and quality management across a large website portfolio.
they enjoyedworking with me
Nour Allazkani
IntrapreneurRéfugiés.info
I collaborated with Jérémie Gisserot on the Réfugiés.info project (DIAIR — French Ministry of the Interior), where he first worked on implementing the French State Design System (DSFR) and ensuring RGAA accessibility compliance, before extending his scope from front-end all the way to back-end.
Versatile is an understatement: "I design and code unique interfaces" isn't just a slogan. Jérémie moves with equal ease from React components to our generative AI POCs, always staying on top of new developments and in constant learning mode, always with precise feedback for our PO and constructive challenge for the designer.
Cherry on top, Jérémie is a great communicator too (just look at his LinkedIn!), you'll quickly realize he's not just going to help you with his dev skills ;)
In short: full-stack developer, communicator and creative, Jérémie is the Swiss army knife you dream of having on a tech-product team. I recommend him without reservation.
Luis Arias
What a pleasure to cross paths with Jérémie in our team since the start of 2024! Jérémie demonstrates a very high level of interpersonal and professional skills with a fascinating specialty: the frontier between design and front-end.
Jérémie is like a fish in water in both areas, but also carries complementary skills in his toolkit: back end, frameworks, AI...
On a human level, his calm, his pedagogy and his adaptability (not to mention his good humor and kindness) are undeniable and decisive assets for a high-performing team that works in good intelligence!
Romain Lauvergnat
CEOStadiumGO
Having a Jérémie on your team is a significant advantage that I highly recommend!
Diligent and pedagogical, it's a pleasure to work together.
Jérémie knows how to put his energy at the service of the company's needs and the missions entrusted to him, always with that little extra creativity that allows us to aim even further.
The UI/UX and development combination that he handles wonderfully only makes collaboration more enjoyable and makes the impossible... almost possible :)
Alexandre Blond
CTOStadiumGO
I have the privilege of working with Jérémie at StadiumGO, and I can say without hesitation that he is one of the most competent professionals I have had the pleasure of collaborating with. Jérémie possesses a very wide range of skills, making him a true creative developer. He has remarkable expertise in UI/UX, both in design and technical implementation. His ability to solve complex problems with creativity and efficiency is impressive.
He is an excellent communicator and is also gifted with empathy! Everyone understands what he does (tech or not), and he aligns with everyone's needs. He is a trustworthy person, always ready to take on challenges with enthusiasm and professionalism. His impeccable work ethic and determination to achieve excellence inspire those who work with him.
I highly recommend Jérémie for any future opportunity. He is one of the pillars that a company needs.